Dobrý večer,
na domácu úlohu mam takýto príklad:
Tomáš mal mať meniny. Rozhodol sa, že spolužiakom v triede kúpi dva druhy malých čokoládok- jeden pre dievčatá (po 30 centov za kus) druhý pre chlapcov (po 35 centov za kus). Za 20 čokoládok zaplatil spolu 6,60€. Predavačka pri pokladni bola zvedavá, koľko je v triede chlapcov a koľko dievčat. Tomáš jej počet napísal na lístok. Aké čísla tam boli?
Výsledok by mal vyjsť dievčat-8 a chlapcov 12 ale neviem ako to mam vypočítať.
Ďakujem za odpoveď
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